Welcome to BBN High Strength Steels Factory
Ordinary medium and thick steel plate stal S500QL is a kind of deoxidized steel. The oxygen content of the steel liquid is relatively high, and a lot of gas will be produced during the production process to make the steel liquid boil, so it is also called boiling steel. Advantages: this kind of steel plate has smooth surface, good quality and easy processing. Because this kind of steel plate has no concentrated shrinkage cavity, the amount of deoxidizer is very small and the price is lower than other steel plates.
The quality grade symbols of Q235 steel plate are A, B, C and D respectively. Different grades represent different impact temperatures. stal S500QL, Q235A is not required for impact toughness test; Q235B is required for impact toughness test at room temperature (20 ℃); Q235C is required for impact toughness test at 0 ℃; Q235D is required for impact toughness test at - 20 ℃. For the above-mentioned B, C and D grade steels, Akv ≥27J is required under different temperature requirements. At different impact temperature, the impact value is also different.
Tempering the important stal S500QL welding structure often use high temperature tempering to remove residual weld stress. Classification: high temperature tempering above 400 ℃, medium temperature tempering 250 ~ 400 ℃, low temperature tempering 150 ~ 250 ℃, Quenching +Tempering is improve stal S500QL strength, plasticity and toughness.
Management concept: integrity is the cornerstone, talent is the foundation, and service is the key.Business philosophy: to keep faith, to win by quality, customer first, win-win development.Based on integrity, win customers with good reputation, win competition with excellent product quality, improve service with customer orientation, and pursue the goal of win-win development in cooperation with customers.Sincerely welcome customers to visit and negotiate business.
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